Seagate ST3600957SS Temperature Log Page 0Dh Parameter Code Description, Drive Self Test DST

Page 22

can be used to set this trip point. The default value for this drive is 68°C, however, you can set it to any value in the range of 0 to 68°C. If you specify a temperature greater than 68°C in this field, the temperature is rounded down to 68°C. A sense code is sent to the host to indicate the rounding of the parameter field.

Table 12: Temperature Log Page (0Dh)

Parameter Code

Description

 

 

0000h

Primary Temperature

 

 

0001h

Reference Temperature

 

 

5.2.6Drive Self Test (DST)

Drive Self Test (DST) is a technology designed to recognize drive fault conditions that qualify the drive as a failed unit. DST validates the functionality of the drive at a system level.

There are two test coverage options implemented in DST:

1.Extended test

2.Short text

The most thorough option is the extended test that performs various tests on the drive and scans every logical block address (LBA) of the drive. The short test is time-restricted and limited in length—it does not scan the entire media surface, but does some fundamental tests and scans portions of the media.

If DST encounters an error during either of these tests, it reports a fault condition. If the drive fails the test, remove it from service and return it to Seagate for service.

5.2.6.1DST failure definition

The drive will present a “diagnostic failed” condition through the self-tests results value of the diagnostic log page if a functional failure is encountered during DST. The channel and servo parameters are not modified to test the drive more stringently, and the number of retries are not reduced. All retries and recovery processes are enabled during the test. If data is recoverable, no failure condition will be reported regardless of the number of retries required to recover the data.

The following conditions are considered DST failure conditions:

•Seek error after retries are exhausted

•Track-follow error after retries are exhausted

•Read error after retries are exhausted

•Write error after retries are exhausted

Recovered errors will not be reported as diagnostic failures.

5.2.6.2Implementation

This section provides all of the information necessary to implement the DST function on this drive.

5.2.6.2.1State of the drive prior to testing

The drive must be in a ready state before issuing the Send Diagnostic command. There are multiple reasons why a drive may not be ready, some of which are valid conditions, and not errors. For example, a drive may be in process of doing a format, or another DST. It is the responsibility of the host application to determine the “not ready” cause.

While not technically part of DST, a Not Ready condition also qualifies the drive to be returned to Seagate as a failed drive.

A Drive Not Ready condition is reported by the drive under the following conditions:

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Cheetah 15K.7 SAS Product Manual, Rev. A

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Contents Cheetah 15K.7 SAS Standard models Self-Encrypting Drive modelsPage Contents About self-encrypting drives Defect and error managementInstallation Interface requirementsSeagate Technology support services Cheetah 15K.7 SAS Product Manual, Rev. a Scope Model Number Capacity Self-Encrypting Drive SEDElectromagnetic compatibility Standards, compliance and reference documentsStandards Electromagnetic susceptibilityCompliance European Union Restriction of Hazardous Substances RoHSReference documents General description Media description Standard featuresPerformance Formatted capacities Factory-installed optionsReliability Programmable drive capacityAccess time Performance characteristicsInternal drive characteristics Seek timeGeneral performance characteristics Format command execution time minutesStart/stop time Prefetch/multi-segmented cache control Cache operationCaching write data Prefetch operationRecoverable Errors Reliability specificationsError rates Unrecoverable ErrorsInterface errors Reliability and serviceSeek errors Preventive maintenancePerformance impact 4 S.M.A.R.TControlling S.M.A.R.T MillisecondsPredictive failures Reporting controlDetermining rate Thermal monitorDrive Self Test DST Temperature Log Page 0Dh Parameter Code DescriptionState of the drive prior to testing DST failure definitionShort test Function Code 001b Invoking DSTShort and extended tests Extended test Function Code 010bShipping Product warrantyAbort Product repair and return informationAC power requirements Physical/electrical specificationsDC power requirements 600 GB DC power requirements ST3600057SS ST3600957SS Gbit mode Amps450 GB DC power requirements ST3450857SS ST3450757SS Gbit mode Amps300 GB DC power requirements ST3300657SS ST3300557SS Gbit mode AmpsConducted noise immunity Power sequencingCurrent profiles Typical 600GB current profiles Typical 300GB current profiles Power dissipation ST3600057SS modelST3450857SS model Environmental limits TemperatureST3300657SS model Shock and vibration Relative humidityEffective altitude sea level ShockPackage size Packaged/product weight Drop height Vibration Recommended mountingCorrosive environment Air cleanlinessAcoustics RoHS compliance statementMechanical specifications Physical dimensionsAbout self-encrypting drives Controlled accessAdmin SP Data encryptionDrive locking Authenticated firmware downloadRandom number generator RNG Data bandsPower requirements Supported commandsDrive internal defects/errors Defect and error managementDrive error recovery procedures Page SAS system errors Background Media ScanDeferred Auto-Reallocation Media Pre-ScanIdle Read After Write Drive orientation InstallationCooling Drive mounting GroundingSAS features Interface requirementsCommand name Command code Supported Scsi commands supportedCommands supported by Cheetah 15K.6 SAS family drives Dual port supportCommands supported by Cheetah 15K.6 SAS family drives Commands supported by Cheetah 15K.6 SAS family drives Commands supported by Cheetah 15K.6 SAS family drives Inquiry data Cheetah 15K.7 inquiry data Bytes Data hexMode Sense data 10.3.2.1 ST3600057SS and ST3600957SS Mode Sense data Mode PagesDEF CHG 10.3.2.2 ST3450857SS and ST3450757SS Mode Sense data Mode Data Header Block Descriptor Mode PagesDEF CHG Read Capacity Data Buffer C D E F 10.3.2.3 ST3300657SS and ST3300557SS Mode Sense data Mode PagesSupported Feature or condition Miscellaneous operating features and conditionsMiscellaneous features Miscellaneous statusSAS physical interface Physical interfaceDatum B Physical characteristics Connector requirementsPin descriptions Pin Signal name Signal typeElectrical description SAS pin descriptionsSAS transmitters and receivers Signal characteristicsPower Ready LED OutDifferential signals SAS-2 Specification complianceLED drive signal General interface characteristicsPresales Support Seagate Technology support servicesTechnical Support Data Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call CenterToll-freeDirect dialFAX Cheetah 15K.7 SAS Product Manual, Rev. a Index NumericsPage SAS Smart
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